trustme.bro/r/…
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the claim
A spherical bowl allows a rolling ball to execute simple harmonic motion
the verdict
COMMON KNOWLEDGE
no citation needed for this one
refutedsupported
the weight of evidence
no sources on either side

That a ball rolling inside a spherical bowl undergoes simple harmonic motion for small displacements is a standard classical mechanics result derivable from the equations of motion and energy conservation, requiring no specific citation.

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The analysis

The claim states a foundational physics principle: a ball rolling in a spherical bowl executes simple harmonic motion under small amplitude approximations. This is a matter of basic physics (common knowledge derived from analytical mechanics), and while general concepts of oscillators appear in the literature, specific empirical verification papers are unnecessary for textbook physics derivations. Paper [9] touches on simple harmonic motion and oscillators conceptually.

Everything we examined (12)
We also searched for evidence AGAINST this claim, not only for it.
  1. Technology Roadmap of Micro/Nanorobots.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  2. Roadmap on Label-Free Super-Resolution Imaging.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  3. Effect of blending Jersey and Holstein-Friesian milk on Cheddar cheese processing, composition, and quality.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  4. From Wave Energy to Electricity: Functional Design and Performance Analysis of Triboelectric Nanogenerators.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  5. Standardized measurements for monitoring and comparing multiphoton microscope systems.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  6. A comprehensive numerical procedure for high-intensity focused ultrasound ablation of breast tumour on an anatomically realistic breast phantom.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  7. Psychophysiological effects of low-frequency sound mediated by room size, room shape, and stimulus duration.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  8. Comprehensive Review on the Droplet Dynamics of an Acoustically Levitated Colloidal Droplet.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  9. Robot-Assisted Dynamic Interaction of Hemiplegic Upper Limbs with Complex Objects Based on Enhanced Feedforward-Impedance Control.peer-reviewedno side takennot shown: read and judged not to bear on this claim
  10. Oscillators and simple harmonic motionpeer-reviewedsupportsnot shown: read and graded, but this claim needs no citation to stand
  11. Coupled Oscillations of Spherical Gas Bubblespeer-reviewedno side takennot shown: read and judged not to bear on this claim
  12. Spherical single-roll dynamos at large magnetic Reynolds numberspeer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked06 Aug 2026
judged → COMMON KNOWLEDGE · 006 Aug 2026
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